苏州中压直流配电工程设计方案及仿真验证

doi:10.11930/j.issn.1004-9649.202006080

中国电力 ›› 2021, Vol. 54 ›› Issue (1): 78-88.DOI: 10.11930/j.issn.1004-9649.202006080

• 国家“十三五”智能电网重大专项专栏：（四）柔性直流电网技术、装备与工程 • 上一篇下一篇

苏州中压直流配电工程设计方案及仿真验证

苏麟¹, 朱鹏飞², 闫安心¹, 马亚林¹, 何梦雪¹, 梅军², 王冰冰², 范光耀²

1. 中国能源建设集团江苏省电力设计院有限公司，江苏南京 211100;
2. 东南大学电气工程学院，江苏南京 210096

收稿日期:2020-06-03 修回日期:2020-07-09 出版日期:2021-01-05 发布日期:2021-01-11
作者简介:苏麟(1980—)，男，硕士，高级工程师(教授级)，从事电化学储能电站、智慧能源、直流配电网规划设计工作，E-mail：sulin@jspdi.com.cn;朱鹏飞(1997—)，男，通信作者，硕士研究生，从事柔性直流输配电技术、直流故障处理技术研究，E-mail：2102128904@qq.com
基金资助:
江苏省电力设计院科技项目(直流配电网仿真技术的研究，32-JK-2019-007)；国家重点研发计划资助项目(中低压直流配用电系统关键技术及应用，2018YFB0904700)

Design Scheme and Simulation Verification of Suzhou Medium Voltage DC Distribution Project

SU Lin¹, ZHU Pengfei², YAN Anxin¹, MA Yalin¹, HE Mengxue¹, MEI Jun², WANG Bingbing², FAN Guangyao²

1. China Energy Engineering Group Jiangsu Power Design Institute Co., Ltd., Nanjing 211100, China;
2. Department of Electrical Engineering, Southeast University, Nanjing 210096, China

Received:2020-06-03 Revised:2020-07-09 Online:2021-01-05 Published:2021-01-11
Supported by:
This work is supported by the Science and technology Project of Jiangsu Electric Power Design Institute (No.32-JK-2019-007) and the National Key R&D Program of China (Key Technology and Application of Medim and Low Voltage DC Distribution System, No.2018YFB0904700)

摘要/Abstract

摘要： 随着中压柔性配电技术的发展，基于电力电子技术的柔性直流配电网在相位和频率同步、灵活控制、线损等方面较交流配电网有着一定的优势，但在技术的成熟性、稳定性以及成本等方面还存在不足。针对苏州中低压直流配用电系统示范工程的中压直流配电网网架，在传统环型与辐射型结构的基础上，通过技术经济比较采用基于单母线分段“双端环型”网架结构设计方案；为适应故障穿越的主动控制需求，发挥改进型网架结构供电方式灵活的特点，提出采用半桥换流站+混合桥换流站的非对称主站设计方案；结合换流阀参数设计与系统接地方式，在PSCAD/EMTDC平台上搭建了系统仿真模型，对工程设计方案的可行性及故障处理能力进行了仿真验证，为示范工程方案设计与设备选型提供分析依据。

关键词: 直流配电网, 运行方式, 网架结构, 参数设计, 直流故障

Abstract: With the development of medium voltage flexible DC distribution technology, the flexible DC distribution network based on power electronics technology has certain advantages over the AC distribution network in phase and frequency synchronization, flexibility of control, transmission line loss, etc., but still has deficiencies in the maturity and stability of technology, as well as the construction cost. For the medium voltage DC distribution network structure of Suzhou medium and low voltage DC distribution system project, a single-bus segmentation based " double-terminal ring " grid structure design scheme is adopted on the basis of comparison of the traditional ring structure and radiation structure. In order to meet the demand of active control of fault ride through and give full play to the flexible power supply modes of the improved grid structure, the design scheme of asymmetrical main station with half bridge converter station + mixed bridge converter station is proposed, and combined with the design of converter valve parameters and system grounding mode, a system simulation model is built on the PSCAD / EMTDC platform to verify the feasibility and fault handling ability of the engineering design scheme, which provides the analysis basis for the scheme design and equipment selection of the demonstration project.

Key words: DC distribution network, operation mode, grid structure, parameters design, DC fault

苏麟, 朱鹏飞, 闫安心, 马亚林, 何梦雪, 梅军, 王冰冰, 范光耀. 苏州中压直流配电工程设计方案及仿真验证[J]. 中国电力, 2021, 54(1): 78-88.

SU Lin, ZHU Pengfei, YAN Anxin, MA Yalin, HE Mengxue, MEI Jun, WANG Bingbing, FAN Guangyao. Design Scheme and Simulation Verification of Suzhou Medium Voltage DC Distribution Project[J]. Electric Power, 2021, 54(1): 78-88.

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苏州中压直流配电工程设计方案及仿真验证

Design Scheme and Simulation Verification of Suzhou Medium Voltage DC Distribution Project

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苏州中压直流配电工程设计方案及仿真验证

Design Scheme and Simulation Verification of Suzhou Medium Voltage DC Distribution Project

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